* Mapping frontends to demuxes
@ 2012-03-11 14:08 Rémi Denis-Courmont
2012-03-11 15:25 ` Rémi Denis-Courmont
0 siblings, 1 reply; 4+ messages in thread
From: Rémi Denis-Courmont @ 2012-03-11 14:08 UTC (permalink / raw)
To: linux-media; +Cc: vlc-devel
Hello linux-media folks,
With the new multi-system frontend capability API, how are frontend and
demux/dvr devices paired? Should userspace assume that frontendX corresponds
to demuxX and dvrX (and caX and netX?) within a multifrontend adaptor?
--
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Mapping frontends to demuxes
2012-03-11 14:08 Mapping frontends to demuxes Rémi Denis-Courmont
@ 2012-03-11 15:25 ` Rémi Denis-Courmont
2012-03-11 15:34 ` Devin Heitmueller
0 siblings, 1 reply; 4+ messages in thread
From: Rémi Denis-Courmont @ 2012-03-11 15:25 UTC (permalink / raw)
To: linux-media; +Cc: vlc-devel
By the way, the bt8xx driver exposes ATSC but not ITU J.83 annex B. This is
contrary to all other ATSC frontends. Is this correct?
--
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Mapping frontends to demuxes
2012-03-11 15:25 ` Rémi Denis-Courmont
@ 2012-03-11 15:34 ` Devin Heitmueller
2012-03-11 15:48 ` Rémi Denis-Courmont
0 siblings, 1 reply; 4+ messages in thread
From: Devin Heitmueller @ 2012-03-11 15:34 UTC (permalink / raw)
To: Rémi Denis-Courmont; +Cc: linux-media, vlc-devel
2012/3/11 Rémi Denis-Courmont <remi@remlab.net>:
> By the way, the bt8xx driver exposes ATSC but not ITU J.83 annex B. This is
> contrary to all other ATSC frontends. Is this correct?
Many of the older cards didn't support J.83 annex B (i.e. ClearQAM).
Whether the device supports ClearQAM or not is actually controlled by
the demodulator driver, not the bridge driver.
If you provide specifically which product you are talking about (the
product name and PCI ID), it's easy enough to confirm by taking a
quick look at the source.
Devin
--
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Mapping frontends to demuxes
2012-03-11 15:34 ` Devin Heitmueller
@ 2012-03-11 15:48 ` Rémi Denis-Courmont
0 siblings, 0 replies; 4+ messages in thread
From: Rémi Denis-Courmont @ 2012-03-11 15:48 UTC (permalink / raw)
To: linux-media; +Cc: vlc-devel
Le dimanche 11 mars 2012 17:34:50 Devin Heitmueller, vous avez écrit :
> 2012/3/11 Rémi Denis-Courmont <remi@remlab.net>:
> > By the way, the bt8xx driver exposes ATSC but not ITU J.83 annex B. This
> > is contrary to all other ATSC frontends. Is this correct?
>
> Many of the older cards didn't support J.83 annex B (i.e. ClearQAM).
> Whether the device supports ClearQAM or not is actually controlled by
> the demodulator driver, not the bridge driver.
Ah ok, thanks.
On the topic of J.83, what's the intended difference between SYS_ISDBC and
SYS_DVBC_ANNEX_C ? (I cannot find any driver with SYS_ISDBC.)
--
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-03-11 15:48 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-03-11 14:08 Mapping frontends to demuxes Rémi Denis-Courmont
2012-03-11 15:25 ` Rémi Denis-Courmont
2012-03-11 15:34 ` Devin Heitmueller
2012-03-11 15:48 ` Rémi Denis-Courmont
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.